Need Overflow box

[Wildstar1063]

Any one here in town got a used overflow box of
between 1000 and 1400 gph flow rating, they want
to sell?

I want to increase the flow in my tank, but the over flow
box I have won't even handle the 750gph little giant
I have now.

Thanks

Chuck England

 

[captbunzo]

If you want to increase the flow in your tank I would recommend adding some SEIO powerheads. I know you don't have any powerheads right now, but that would be the best solution.

 

[Wildstar1063]

I had looked at those after I read about them on some forum or
other, but I think it looks so much better not to have the powerheads in the tank, so I'd like to just get a bigger overflow
and pump if I can, although the seio might be a good backup
solution if the main circulation pump dies.

Chuck E.

 

[captbunzo]

I just wouldn't be too excited about trusting a siphon overflow as the main water circulation for a tank. I'd guess a couple powerheads to be much more reliable. Also, in order to push enough flow through a overflow, you are going to have some major water going through a sump and will burn a lot more electricity.

 

[Wildstar1063]

I have used the siphon overflow for about 2 years now with no issues, I have thought about adding a second one to split the flow just for backup.

I wish I could have the tank drilled, but I believe the bottom
of my 55 is tempered glass, plus removing the 7 inches of sand
and all the rock to do the drilling would suck!, so I'm stuck using
the overflows.

I just want more flow, the 750gph mag is throttled down to
about 500 gph including water losses the bends in the plumbing
induce. This is due to the overflow not being able to handle
more than that.

What I want is about a 1200 gph pump, and an overflow of
1000 to 1400 gph capicity. or maybe a 1800 gph pump and 2
800 gph overflows

Chuck E.

 

[chris4693]

I just added two 1100gph Seio's to my tank and the flow of a stream type powerhead is very nice. I just wish I could use a flow device with them like a Tunze, mabey one of these days I will have that kind of cash.

Personally I believe the best way to add more flow is by useing either Stream type powerheads or a closed loop. Most Refugiums don't need tons of flow.

 

[djc1026]

I use a 700gph overflow box and have about 250gph flow through the sump/fuge/return. I use seio 620s for the flow in the tank. I like the low flow approach through the sump. The question to ask, is probably better suited for Chris. Can a sump/fuge be designed that will allow for slow flow through the fuge, but have a return section adequate enough to accomodate a large return pump?

Dave

 

[lapizzaro]

I have a 1200gph Dual overflow for sale on the site if interested w/tubes and stockman aquasilencer. Just check today's post

 

[lapizzaro]

I forgot the link
http://reefcentral.com/forums/showthread.php?s=&threadid=894769

 

[chris4693]

Dave

Yes, the easiest way to accomplish that is to set the sump up with the return in the middle then have the refugium on one side and the intake skimmer section on the other end. At that point you can either send all of your drain water to the intake/skimmer section then feed you refugium off of you main return line. Or send a portion of your drain water to the refugium. You can set it up different ways, I have become fond of having a skimmer / return sump, and a seperate refugium sump much like the one I just finished building for myself.

 

[Wildstar1063]

lapizzaro,

Are you in the Oklahoma City metro area? I was trying to get something local.

The 1200 GPH unit does sound good though.

An out of town option I did find was this on ebay:

http://cgi.ebay.com/Hang-on-Overflo...3QQihZ003QQcategoryZ46310QQrdZ1QQcmdZViewItem

However his buy it now prices is 29.95, but then he wants 18.90 for shipping, and I have a policy of never buying from ebay sellers who are trying to make money off the back end,
by charging inflated shipping prices.

Thanks

Chuck E.

 

[lapizzaro]

No I am not- I am in the carolinas but buying local is my prefered way also - so I understand. I think he is trying to mimic CPR design. I share your concerns

 

[djc1026]

Thanks for the explanation Chris.

Dave

 

[Wildstar1063]

My fuge/Sump is another 55 gal. it is arranged as follows:
I have the return from the overflow, and the skimmer at one end if the tank, then the fuge in the center of the tank, then at the other end is the return pump, the skimmer and pump ends are seperated from the fuge with baffles. To reduce flow through the fuge, I have a bypass line running off the return from the overflow, straight over to the pump end.

Chuck E.